SANDPOINT, Idaho— The U.S. Customs and Border Protection and U.S. Forest Service have announced plans to build a road in Idaho’s Selkirk Mountains that will cut through some of the most important habitat for grizzly bears and Canada lynx, as well as mountain caribou, which recently went extinct on the U.S. side of the border.

Bog Creek Road would be in Boundary County, Idaho, in the Idaho Panhandle National Forest.

“Trump’s clearly not satisfied with just destroying our southern borderlands. This totally unnecessary new road will ruin habitat for grizzlies and other wildlife in this pristine area in northern Idaho,” said Andrea Santarsiere, a senior attorney at the Center for Biological Diversity. “The Selkirks are a beautiful, wild mountain range, and this road will be devastating.”

The Customs and Border Protection agency argues the road is needed for “legitimate threats” to border security but has not provided the public with any evidence to back up this claim. The agencies plan to forge ahead despite public opposition and despite the grave environmental harm that will be caused by the road.

“We believe this road construction project violates the Endangered Species Act and the National Environmental Policy Act, and we’re prepared to fight to protect this crucial wildlife habitat,” said Santarsiere.

The Center for Biological Diversity is a national, nonprofit conservation organization with more than 1.4 million members and online activists dedicated to the protection of endangered species and wild places.